void-packages/common/scripts/lint-version-change

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2021-05-24 20:18:54 +00:00
#!/bin/sh
# when $3 is empty, template is read from working directory
template="$1" base_rev="$2" tip_rev="$3"
status=0
die() {
printf '%s\n' "$*" >&2
exit 1
}
if ! [ "$base_rev" ]; then
die "usage: $0 TEMPLATE BASE-REVISION [TIP-REVISION]"
fi
if command -v chroot-git >/dev/null 2>&1; then
GIT_CMD=$(command -v chroot-git)
elif command -v git >/dev/null 2>&1; then
GIT_CMD=$(command -v git)
else
die "neither chroot-git nor git could be found"
fi
scan() {
rx="$1" msg="$2"
template_path=$template
if [ "$tip_rev" ]; then
template_path="${tip_rev}:${template}"
maybe_git="$GIT_CMD"
revspec="[^:]*:"
fi
$maybe_git grep -P -Hn -e "$rx" "$template_path" |
grep -v -P -e "[^:]*:[^:]*:\s*#" |
sed "s/^${revspec}\([^:]*:[^:]*:\)\(.*\)/\1 $msg/"
}
show_template() {
rev="$1"
if [ "$rev" ]; then
$GIT_CMD cat-file blob "${rev}:${template}" 2>/dev/null
else
cat "${template}" 2>/dev/null
fi
}
show_template_var() {
rev="$1" var="$2"
show_template "$rev" | grep -Po '^'${var}'=\K.*'
}
revision_reset() {
[ "${revision}" = 1 ] && return
if [ "$prev_version" ]; then
case "$prev_reverts" in
*"$version"_*) return
esac
action=update
else
action=creation
fi
scan "^revision=" "revision should be set to 1 on ${action}"
status=1
}
reverts_on_downgrade() {
[ "$version" ] || return
case "$reverts" in
*"$prev_version"_*) ;;
*)
scan "^version=" "missing reverts= for downgrade $prev_version to $version"
status=1
esac
}
version_change() {
version="$(show_template_var "$tip_rev" version)"
revision="$(show_template_var "$tip_rev" revision)"
reverts="$(show_template_var "$tip_rev" reverts)"
prev_version="$(show_template_var "$base_rev" version)"
prev_reverts="$(show_template_var "$base_rev" reverts)"
xbps-uhelper cmpver "$version" "$prev_version"
case "$?" in
1) revision_reset;;
-1|255) reverts_on_downgrade;;
esac
}
version_change
exit $status